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コンピュータ・ハードウェア Cypress Semiconductor CY7C1041DV33のPDF 仕様書をオンラインで閲覧またはダウンロードできます。Cypress Semiconductor CY7C1041DV33 14 ページ。 4 mbit (256k x 16) static ram
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Switching Waveforms
ADDRESS
CE
WE
BHE, BLE
DATA IO
Truth Table
CE
OE
WE
BLE
H
X
X
X
L
L
H
L
L
L
H
L
L
L
H
H
L
X
L
L
L
X
L
L
L
X
L
H
L
H
H
X
Document #: 38-05473 Rev. *E
(continued)
Figure 9. Write Cycle No. 4 (WE Controlled, OE LOW)
t
AW
t
SA
21
NOTE
IO
–IO
BHE
0
7
X
High-Z
High-Z
L
Data Out
Data Out
H
Data Out
High-Z
L
High-Z
Data Out
L
Data In
Data In
H
Data In
High-Z
L
High-Z
Data In
X
High-Z
High-Z
t
WC
t
SCE
t
PWE
t
BW
t
t
HZWE
SD
IO
–IO
8
15
Power Down
Read All Bits
Read Lower Bits Only
Read Upper Bits Only
Write All Bits
Write Lower Bits Only
Write Upper Bits Only
Selected, Outputs Disabled
CY7C1041DV33
t
HA
t
HD
t
LZWE
Mode
Power
Standby (I
Active (I
CC
Active (I
CC
Active (I
CC
Active (I
CC
Active (I
CC
Active (I
CC
Active (I
CC
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SB
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